P-45 км 1 сторона-50минут за1 ч-?км
Р=45 ⇒ 1 сторона = 11,25 км 50 мин = 5/6 часа скорость V=s : t = 11.25 : 5/6 = 11.25*6:5=13.5 км/ч Значит за 1 час проедет 13,5 км.
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